Revenge of the Cybermen

Departing Skaro using the Time Ring, the Doctor, Harry and Sarah Jane finally return to Nerva Beacon, but arrive in its distant past. Prior to becoming an ark, it guided starships into a safe passage through uncharted space. However, the Nerva’s mission is threatened by an unknown force killing off its crew. Finding it leads to more unanswered questions, and soon reveals an entire civilisation on the asteriod Voga- and Voga’s natural abundance of gold. The Vogans remain hidden underground, knowing their gold is also the bane of the Cybermen, after being attacked by them once before in a failed bid to destroy it. Though few Cybermen remain after the great Cyber-Wars, the survivors are enough to put the whole of Voga jeopardy once again.